Chromosome number in Hordeum vulgare x H. bulbosum hybrids ranged between the haploid and diploid number but with peaks in frequency occurring at the 14 and 7 chromosome level. This was reflected in a gradual change from ...

Primary trisomics were used to locate the structural loci coding for particular forms of the dimeric enzymes phosphoglucoisomerase and glutamate oxaloacetate transaminase in Lolium perenne. The polymorphy of these loci ...

Four growth regulators incorporated into Murashige and Skoog's basal medium were tested for their effect on the rate of tillering of Lolium multiflorum plantlets in culture. Tillering was stimulated in the presence of 1-2 ...

In the hybrid Festuca scarisoa X drymeja where pairing is incomplete at pachytene, there is preferential pairing between the longer chromosomes of the complement. EM serial-section reconstruction of nuclei at zygotene and ...

The total volume of centromeres per nucleus varies widely within Triticum aestivum cv. Chinese Spring (7-fold) and between 11 higher plant species (24-fold). Such variation is closely correlated with nuclear DNA content, ...

Chromosome pairing with the synaptonemal complex in allohexaploid wheat, Triticum aestivum cv. Chinese Spring, has been investigated by serial section series through seventeen pollen mother cell nucleic at the zygotene ...

Immature inflorescences 1–20 mm long were cultured from forage grass species and hybrids in the genera Lolium, Festuca, Dactylis and Phleum. Many small plantlets were regenerated from all the grasses, either directly from ...

In many genera, of both plants and animals, divergence and speciation is often accompanied by massive changes in the amount of nuclear DNA. These changes, in turn, result from amplification or repetition of base sequences ...

Ononitol (4-O-methyl-myo-inositol) and O-methyl-scyllo-inositol were identified in pea (Pisum sativum L.) root nodules formed by twoRhizobium leguminosarum strains. Ononitol was the major soluble carbohydrate in nodules ...

A total of 15 rumen-cannulated sheep and four rumen-cannulated goats (Expt 3) were used in five latin square experiments designed to investigate the effects of carbohydrate supplements on ruminal ammonia concentration in ...

The chromosomes of Lolium temulentum are longer and contain on average 50% more nuclear DNA than the chromosomes of L. perenne. In the hybrid, despite the difference in length and DNA content, pairing between the homoeologous ...

Chromosome pairing and synaptonemal complex formation at zygotene and pachytene are described from serial section reconstructions of pollen mother cell nuclei in a triploid hybrid containing two haploid sets of Lolium ...